While under heavily armed guard, the dangerous convicts aboard a cargo ship unite in a coordinated escape attempt that soon escalates into a bloody, all-out riot. But as the fugitives continue their brutal campaign of terror, they soon discover that not even the most vicious among them is safe from the horror they unknowingly unleashed from the darkness below deck.

Ha Yoon-ju becomes the newest member of a unit within the Korean Police Forces Special Crime Department that specializes in surveillance activities on high-profile criminals. She teams up with Hwang Sang-jun, the veteran leader of the unit, and tries to track down James who is the cold-hearted leader of an armed criminal organization.

Moon-hee is an attractive woman who runs an art academy after returning from the States. She lives apart from her husband who won't divorce her and enjoys a free relationship with In-gyu, her lover of long time and Professor Yoon whom she's been privately involved with for a long time. On the other hand, her young student Joo Won only draws her face during class. He fell in love with her when he saw Moon-hee as a bride at the wedding his grandma took him too. He started art because of her and started attending the academy. He thinks it's destiny. Moon-hee is attracted to Joo Won's pure heart until they share love in in a studio where it's just them....

Baek Seong-chul has been running away for 14 years and 11 months after being accused of killing a man. When there is only one month left from the statute of limitations of 15 years, he comes to a quiet village to hide, pretending to be the missing son of an old woman with dementia. However, the intense fight between environmental groups and the county office gets him exposed. Will he have to pay for his crimes?

High school student Sung Jin commits suicide after being the victim of school violence for a long time. Three years later, one of his bullies Han Yeo Wool debuts as a celebrity. Sung Jin's brother, Sung Hyun, blames himself for not recognizing the pain his brother went through and finds a comment on Han Yeo Wool's news report that Sung Jin didn't commit suicide but was instead killed by Yeo Wool. The brother sets out to find the truth and he heads for destruction.

Suddenly they woke up. Not knowing who did it, 6 of them got up in the same place. The survival game for 6 people with nothing in common has begun.